Door-hanger.



G. 0. MARK.

DOOR HANGER.

APPLICATION mum mm: 25, 1909.

Patented Oct. 25, 1910.

' fss ITED STATES- q ires-b MARX, or imoox mzns New .YQRK. itssienon phone-imitative 'qeERNARD sm'rzrannn, 'OF nnooaI YN, .NgW-fitQRre g1 -To,'a2li,omitmey. concern:

Be it lgiiown that I (n.uuacs .ireitize11 of the United States; residing at llrot-iklyn, in the county of Kings and State of New; Yforlc,' have invented certain new and u'sfm Improvements in Door-Hangers,

of, which-the; following is a specification. li-fy invention relates to improvcmcnts in adoorhang'cr and it is specially adapt cd for o .nsc on elevator doors.

a'dnrahleand noiseless construction for thc purpose mentioned, wherein friction between the track and roller is reduced to a minimum?" a \YitliYhese andothcr ohjccts and advantagesl in view the invention comprises anovelconstruction and arrangement of parts," artlcularly dcscrthed-hereafter and pomtet out in the claims appended hereto.

ing a part hcreofl*igure l is a. perspectire View ofthe top of a door with the hanger and track in operative position. Fig. 2 is a transvclsc sectional viewof one of the hangers and track; Fig. I, an cnlargcd side elevation of the invention. Fig. 4-is .a top plan view of the hanger; Fig. is a modlfied formof track and Fig. (i is a still further modification thcl'tof.

Like numerals designate like parts throughout the views-of the drawing.

The hunger is composed of a base plate I, which is formed with parallel np-tznrncd flanges 2' and 3. perforattal as at- 5 {or permanent attachment to a han er frame 7, by

-m0ansof rivets or pins ti. hile in this instance .14 have shown pins extending from flange to flange and \m-set at. each end, to securely fasten the hanger frame and base plate together and hrace the same, it, is to tmdetstood that-this connection may he made simply byriveting cach flange 'to the depending branches of the hanger frame 7. The branches of the hanger-frame 7 are perforatedat. 8, said perforations registering with the perforations 5 in the flanges of the base plate 1. The base plate iselongated and at; each end iS-PIOVIdCd with screw olpenings or perforations, 9. It is secured to top ofgt to door 10 by means of screws 11-, or-other suitahlefasteniug means where the-door may be constructed of metal. The base plate and hanger frame are refcrably DOOR-HANGER.

I t s ecification of lllctters Paten -t littlkllfiftl (lot. L5, 51910; I Application tiled June 25, 1'9o 9. sr'l'ii'l m; 5:143:35. I

(ls'cini Alana,

The object of the invention is to produce In the 'drawingsannexed to aml formhaugcrfralne is in the shape of a stra p' of suitablelcn th'bcnt U-shapcdand in'vcrteiL' 1.l' At a snitalilc distance from the arch l2 1 thcrcof thc hang'er frameln'accd by two pins 13 and 14 projectingfrom"oiicsideait'55? the frame to. tli'eothcl'\vit-lr'thcii"ends up set. to securely ln'ace'thc sides of the said frame, in conjunction with the pins (l. 'lhe-- said pins 13 and l-l are located above and out of contact with the metallic roller 15. 5- and arc so spaced apart that the said roller 5S opcratcs thcrclwtwccn but below the same.-

The roller is preferably spherical in shape with plane sides 16', contiguous-to the depending prides or arms of the frame T. l t is 70 joln'naled in position a 'stiitahlc" distance ahovc the base by nit-ans of'jonrnal pins LS and ltlto permit the track-1T to cnterfithe frame tlwrciimlcr. 'lhcsc journal pins haveconical hcarin; points 20 and are threaded- '5. on thc.c li1idrical lltltly portion tlicreof as. -L; at 'l. 'lhcsc pins are thvcaded'into the said frame at opposite sidcs,'whieh for the purposc of I rcinforccn'ient. is provided with plates 22. securely rivctcd 'or otherwise fastent-d to the outside of'thcdepending!arms .1 or portions of the frame. Instead of rcinforcing plates the frames may he formed with integral enlargements at this point.

'.lhc openings 23in these plates, register and' are threaded to receive the journal pins [8 aml 19. To prevent. these pins from moving after they are once positioned, a set screw 24 is cmploycd; this set screw is threaded into an opening 25 in each of the plates 22, which said opening formed at right anglcs to the position of the opening for the journal pins l8 and IS.) and extends through the plate to the (owning for the journal pin. This arrangement permits the set screws to impinge npon'thc. said journal pins and maintain them immovahly in position. The conical hearing points of the'pins l8 and l!) are jonrnaled in conical depressions or hearings 26, arranged in the opposite plane sides of the roller and at the center thereof. The rolleris preferably constructed of casehardened metal and travels upon a track 10- rated beneath the same. and between the doapartonlyrsufliciently to perlnit'thc' hanger frame to operate on the track witlmnt'hinding therein.. The object; is to -aline the cen-f ters of the m1 lei and track parallel with the formed-of any-suitable metal an the said said depending s'ides. Of course it will be 110' pending, sides of the frame which are spaced, i

' hanger frames located upon the top preferred form there are two or more of. each understood that door.

The track 17 is preferably constructed of steel tubing rotatably mount ed inbrackets 26. These brackets are formed with projecting parts 27, having openings 28 in which the ends of the tubular track are rotatably seated. The base of each bracket is provided with slotted openings upon opposite sides of the projection .27 through whlch fastening devices '29 connect the same adjustably with the door frame or inclosurc of the elevaton shaft.

in Fig. '5. is shown a 'modilied form of track 17 which is constructed of a solid circular bar of steel and in Fig. 6 there is shown a still further modification of track. The construction as here shown is a -longituclinal segment of steel tubing arranged with the circular part 17 thereof uppermost and reinforced by an integral rib 17 underneath and extending longitudinally of said segn'ient. Both of the modified forms of rotatable track, namely, 17 and 17 are intended to be used in conjunction with, brackets similar to those cmployed'in the of construction and to this end. the nmdiiication shown in Fig. 6. has

its integral-rib 17, restricted in height to the diameter of the segmental part of said n'lodilied form of track.

The advantages of the construction and arrangements of parts hereinbefore described are as follows There is a minimuln of friction bet ween the hanger frame and the track and also a minimum surface for friction between the roller and the track so that the door will travel upon the track with little noise and friction and the hanger frames are not apt to bind and cause the door to lodge; also the track may be rotated in its bearings from time to time to present an unworn sur- .face to the roller. This will overcome the increase of friction caused bythe wearing of a fiat surface upon the track. The construction shown in Fig. 6 is also ada ted to be rotatable as described to prevent at at surface being presented to the roller, although with this form of construction complete-rotation of the track is not made.

Having thus fully described 'my invention what'I claim as new and desire to secure by Letters Patent of the United States is:

l. The combination of a door-'hanger-' a. convex track; a convex roller rot-aframe, tably mounted in said hanger-frame, and brackets having projecting members adapted for rotatably seating said track therein.

2. The combination with a door-hanger frame, of a convex-roller jonrnaled in said frame, and a convex track for said roller, rot atably seated in end supporting brackets, said hanger frame being constructed with depending sides spaced apart to aline the centers of said roller and track parallel with said depending sides.

3. The con'ibinatiouwith a door hanger frame, provided with arallel depending sides, and a convex trac of a roller rota. tably mounted in said frame and constructed with a cylindrical tread adapted to travel on said track, the said depending sides of the hanger frame being spaced apart to a line the centers of the roller and track parallel with the said depending sides.

Intestimony whereof I Iflix my signature in presence of two witnesses.

CHARLES OSCAR MARX. 

